/* ===== CSS Variables ===== */
:root {
    --color-primary: #c41e3a;
    --color-primary-dark: #9a1830;
    --color-primary-light: #e8354f;
    --color-secondary: #1a365d;
    --color-accent: #d4af37;
    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-bg: #ffffff;
    --color-bg-alt: #f7f5f2;
    --color-bg-dark: #1a1a2e;
    --font-serif: 'Shippori Mincho', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.4;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

.btn-secondary:hover {
    background: #fff;
    color: var(--color-primary);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn-light {
    background: #fff;
    color: var(--color-primary);
    border-color: #fff;
    font-size: 16px;
    padding: 16px 40px;
}

.btn-light:hover {
    background: var(--color-bg-alt);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-full {
    width: 100%;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255,255,255,0.98);
    box-shadow: var(--shadow-md);
}

.header.scrolled .logo-text,
.header.scrolled .nav-list a {
    color: var(--color-text);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    transition: var(--transition);
}

.nav-list {
    display: flex;
    gap: 40px;
}

.nav-list a {
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    position: relative;
    transition: var(--transition);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav-list a:hover::after {
    width: 100%;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 10px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: #fff;
    transition: var(--transition);
}

.header.scrolled .mobile-menu-btn span {
    background: var(--color-text);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.98);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.mobile-nav ul {
    text-align: center;
}

.mobile-nav li {
    margin: 20px 0;
}

.mobile-nav a {
    font-size: 24px;
    color: #fff;
    font-weight: 500;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,26,46,0.85) 0%, rgba(26,54,93,0.7) 100%);
    z-index: -1;
}

.hero-content {
    padding: 120px 0 80px;
    max-width: 700px;
}

.hero-subtitle {
    display: inline-block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: 3px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-description {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 50px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 700;
    color: #fff;
}

.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

/* ===== Features Section ===== */
.features {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--color-secondary);
}

.feature-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===== Section Styles ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 3px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-title {
    font-size: 40px;
    color: var(--color-secondary);
    margin-bottom: 16px;
}

.section-description {
    font-size: 16px;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Tours Section ===== */
.tours {
    padding: 100px 0;
}

.tours-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.tour-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.tour-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.tour-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.tour-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.tour-card:hover .tour-image img {
    transform: scale(1.1);
}

.tour-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--color-primary);
    color: #fff;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.tour-badge.featured {
    background: var(--color-accent);
    color: var(--color-secondary);
}

.tour-content {
    padding: 24px;
}

.tour-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}

.tour-duration,
.tour-location {
    font-size: 13px;
    color: var(--color-text-light);
}

.tour-title {
    font-size: 20px;
    color: var(--color-secondary);
    margin-bottom: 12px;
}

.tour-description {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.7;
}

.tour-includes {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.tour-includes li {
    font-size: 13px;
    color: var(--color-text);
}

.tour-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tour-price {
    display: flex;
    flex-direction: column;
}

.price-label {
    font-size: 12px;
    color: var(--color-text-light);
}

.price-value {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

/* ===== Testimonials Section ===== */
.testimonials {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: #fff;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.testimonial-rating {
    color: var(--color-accent);
    font-size: 20px;
    margin-bottom: 20px;
}

.testimonial-text {
    font-size: 15px;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-secondary);
}

.author-meta {
    font-size: 13px;
    color: var(--color-text-light);
}

/* ===== About Section ===== */
.about {
    padding: 100px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-text .section-label {
    text-align: left;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-description {
    font-size: 15px;
    color: var(--color-text-light);
    margin-bottom: 32px;
    line-height: 1.8;
}

.company-info {
    display: grid;
    gap: 16px;
}

.info-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid #eee;
}

.info-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-secondary);
}

.info-value {
    font-size: 14px;
    color: var(--color-text);
}

/* ===== Contact Section ===== */
.contact {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info .section-label {
    text-align: left;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.contact-description {
    font-size: 15px;
    color: var(--color-text-light);
    margin-bottom: 40px;
}

.contact-details {
    display: grid;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-secondary);
}

.contact-note {
    font-size: 12px;
    color: var(--color-text-light);
    margin-top: 4px;
}

/* Contact Form */
.contact-form-wrapper {
    background: #fff;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-title {
    font-size: 24px;
    color: var(--color-secondary);
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 8px;
}

.required {
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    font-family: var(--font-sans);
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(196,30,58,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    margin-bottom: 30px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 14px;
}

.checkbox-label input {
    width: auto;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* ===== CTA Section ===== */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    text-align: center;
}

.cta-title {
    font-size: 40px;
    color: #fff;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-bg-dark);
    padding: 80px 0 30px;
    color: #fff;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text {
    color: #fff;
}

.footer-description {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 24px;
    line-height: 1.8;
}

.footer-contact {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #fff;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul a {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

.footer-column ul a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

/* ===== Page Styles (Privacy, Terms) ===== */
.page-header {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-bg-dark) 100%);
    padding: 140px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 40px;
    color: #fff;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
}

.page-content {
    padding: 80px 0;
}

.page-content .container {
    max-width: 800px;
}

.page-content h2 {
    font-size: 24px;
    color: var(--color-secondary);
    margin: 40px 0 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
}

.page-content h3 {
    font-size: 18px;
    color: var(--color-secondary);
    margin: 30px 0 15px;
}

.page-content p {
    font-size: 15px;
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.9;
}

.page-content ul {
    margin: 16px 0 24px 24px;
}

.page-content ul li {
    font-size: 15px;
    color: var(--color-text);
    margin-bottom: 10px;
    list-style: disc;
    line-height: 1.8;
}

.page-content .update-date {
    font-size: 14px;
    color: var(--color-text-light);
    text-align: right;
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tours-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image img {
        height: 300px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .tours-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .cta-title {
        font-size: 28px;
    }
    
    .info-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .page-header h1 {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .hero-content {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }
}